US 12,074,349 B2
Metal porous body, method of producing the same, and fuel cell
Chihiro Hiraiwa, Osaka (JP); Masatoshi Majima, Osaka (JP); Takahiro Higashino, Osaka (JP); Naho Mizuhara, Osaka (JP); and Hiromasa Tawarayama, Osaka (JP)
Assigned to Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 16/971,786
Filed by Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Jan. 9, 2019, PCT No. PCT/JP2019/000361
§ 371(c)(1), (2) Date Aug. 21, 2020,
PCT Pub. No. WO2019/167433, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 2018-032912 (JP), filed on Feb. 27, 2018.
Prior Publication US 2021/0083301 A1, Mar. 18, 2021
Int. Cl. H01M 8/0232 (2016.01); H01M 8/0247 (2016.01); H01M 8/12 (2016.01); B22F 3/11 (2006.01)
CPC H01M 8/0232 (2013.01) [H01M 8/0247 (2013.01); H01M 8/12 (2013.01); B22F 3/11 (2013.01); B22F 3/1103 (2013.01); H01M 2008/1293 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A fuel cell comprising:
a cathode;
an anode;
an electrolyte layer interposed between the cathode and the anode; and
a metal porous body having a frame of a three-dimensional network structure, wherein
the metal porous body is disposed to face at least one of the cathode and the anode,
the frame is formed of a plurality of bone members connected to each other,
the plurality of bone members define openings in a surface of the metal porous body,
the plurality of bone members define voids inside the metal porous body,
the openings and the voids communicate with each other,
a porosity is from 1 volume % or more to 10 volume % or less,
a density is from 3 g/cm3 to 10 g/cm3,
a diameter of the openings is 3 um or more and less than 5 um, and
the fuel cell generates electricity at a maximum power density of 291-348 mW/cm2.